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Form 2 – Exam Viewer – DHomesb Final Exam – CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1

Which protocol in its default configuration downloads e-mail messages to the client computer and deletes them from the server?

FTP

POP3

SMTP

IMAP4

2

A user tries to open a page on the web server at http://www.cisco.com. The user’s workstation does not have the destination IP address in order to encapsulate the request. Which network topology will provide the services that are required to associate the name of the web server with an IP address?

<<< TRUE

3

TCP/IP data transmission between the source and destination host is de-encapsulated in four steps:

A. The TCP header is removed.
B. Bits are decoded and the destination MAC address is recognized.
C. The IP header is removed and the contents are passed to the next layer.
D. The Ethernet header and trailer are removed.

What is the correct sequence of these steps?

A, B, C, D

A, C, B, D

B, C, D, A

B, D, C, A

C, A, B, D

4

Which protocol is used to transfer files among network devices and perform file-management functions?

DNS

FTP

HTML

HTTP

5

Which of the following are transport layer protocols of the TCP/IP model? (Choose two.)

FTP

UDP

SMTP

TFTP

TCP

6

What measurement is commonly used to describe communication speed when transferring data?

bps

cps

Hz

MB

7

As an assignment, a computer science student needs to present data in binary format. What are the two possible values that the student can use? (Choose two.)

0

1

2

A

F

8

A host wants to send information simultaneously to all the other hosts in the same network. Which domain will support this type of communication?

broadcast

unicast

local

multicast

9

What destination IP address is used in a unicast packet?

a specific host

a group of hosts

all hosts on the network

the network broadcast address

10

Which portion of a received datagram is decoded and used by the internetwork layer of the TCP/IP model?

IP address

port number

MAC address

HTML/user data

11

What are two advantages of purchasing a custom-built computer? (Choose two.)

usually a lower cost

no waiting period for assembly

user can specify higher performance components

supports higher-end graphics and gaming applications

fewer components to replace

12

What is the most common reason that ISPs provide asymmetrical transfer services?

to carry a large amount of data in both directions at equal rates

to host servers on the Internet

to work with applications that require significant bandwidth

to work with large business applications

13

When is the use of a DSL modem necessary?

when a cellular telephone provides the service

when a high-speed connection is provided over a cable TV network

when a high-speed digital connection is required over the regular telephone line

when a satellite dish is used

14

Which network design layer provides a connection point for end user devices to the network?

access

core

distribution

network

15

Which two statements are true about network applications? (Choose two.)

Microsoft Word is an example of a network application.

Network applications are accessible from a remote computer.

Network applications are installed on a special type of computer that supports only network applications.

Network applications are installed on a network server.

Network applications are accessible by one computer at a time.

16

Which type of network supports DHCP and DNS services for network users in a network domain?

client/server

peer-to-peer

hierarchical

ad hoc

17

Which portion of the packet does a router use to forward the packet to the destination?

source IP address

user data

destination IP address

control information

destination MAC address

18

Refer to the exhibit. The network is experiencing excessive broadcast traffic from multiple hosts. What can be done to reduce the broadcast traffic that each host receives without compromising connectivity to the corporate servers?

Separate the switches with a router.

Create a separate VLAN for the servers and hosts.

Change from Ethernet switches to FastEthernet switches.

Increase the number of switches to reduce the number of PCs that are connected to each switch.

19

Refer to the exhibit. If host H8 sends a message to host H5 and the destination MAC address is in the MAC tables of both switches, which host device or devices will receive the message?

only host H5

all hosts on the network

all hosts that are connected to switch Sw1

all hosts that are connected to switch Sw2 and host H5.

all hosts that are connected to hub Hub1 and switch Sw1

20

Refer to the graphic. Based on the information that is shown, what statement is true?

This configuration would be commonly found in an ad hoc wireless network.

Any wireless client that is attached to this access point would have the same IP address and SSID.

All wireless devices that are connected to this access point must have an assigned SSID of Academy.

In addition to accepting wireless client requests, this access point must connect to the wired network.

21

Refer to the graphic. Assume that the command output is from a wireless DHCP client that is connected to a Linksys integrated router. What can be deduced from the output?

The wireless connection is good.

The WEP key or SSID needs to be checked.

The DHCP configuration on the router needs to be checked.

The wireless NIC driver or the NIC itself needs to be reinstalled.

22

How do ISPs obtain public IP addresses?

They create the addresses themselves.

They obtain the addresses from the home PCs.

They obtain the addresses from the Internet registry.

They obtain the addresses from the RFC.

23

Refer to the exhibit. In the wireless network, what is the maximum number of hosts supported if the IP addressing scheme contains four host bits?

6

14

16

30

32

254

24

What describes the external IP address that is obtained by a router through a cable or DSL modem?

a public address that is obtained from ICANN

a private address that is manually configured by the administrator

a public address that is obtained through DHCP from the ISP

a private address that converts to a public address on the internal LAN

25

After issuing the ipconfig/all command on a host that has DHCP enabled, a network administrator notes that the output contains faulty IP configuration information. What is the first step the administrator should take to resolve this issue?

Replace the NIC in the host.

Change the IP address of the DHCP server.

Use static addressing to assign the correct IP address.

Use the release and renew options supported by the ipconfig command.

26

Which three addresses belong to the category of private IP addresses? (Choose three.)

10.0.0.1

128.0.0.1

150.0.0.1

172.16.0.1

192.168.31.19

172.168.31.1

27

Which part of the electromagnetic spectrum is commonly used to exchange data between a PDA and a computer?

FM

radar

infrared

ultraviolet

28

What is the purpose of pop-up blocker software?

It detects and removes spyware.

It detects and removes viruses.

It prevents the display of advertisement windows.

It removes unwanted e-mail.

29

Refer to the exhibit. The security policy of an organization allows employees to connect to the office intranet from their homes. Which type of security policy is this?

acceptable use

incident handling

network maintenance

remote access

30

Which type of network attack occurs when an unauthorized person tries to persuade a user to share a network user ID and password?

brute force

denial of service

data manipulation

social engineering

31

When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?

private IP addresses

global public IP addresses

Internet-routable addresses

both private and public IP addresses

32

Which statement is true concerning stateful packet inspection?

Access is permitted based on IP addresses of the source and destination devices.

Access is permitted based on the MAC addresses of the source and destination devices.

Access is permitted only if the type of application that is attempting to reach the internal host is allowed.

Access is permitted only if it is a legitimate response to a request from an internal host.

33

How does a straight-through cable connect two unlike devices?

It connects the receive pins on the first device to the receive pins on the second device.

It connects the transmit pins on the first device to the receive pins on the second device.

It disconnects the transmit pins and uses only the receive pins.

It uses the same pins for transmitting and receiving.

34

When would infrared be used to connect network devices?

when connecting multiple host devices to a wireless access point

when synchronizing a PC with a PDA that is in line of sight

when connecting a PC to a network switch that is located in another room

when updating two access points that are located in separate buildings

35

Which picture shows a USB port on a PC?

<<< TRUE

36

Which type of computer has an integrated mouse?

desktop

laptop

mainframe

server

pocket PC

37

Which adapter card would be required for a PC to exchange information with other PCs on a LAN?

NIC

video card

sound card

internal modem

38

Which two components are configured via software in order for a PC to participate in a network environment? (Choose two.)

MAC address

IP address

kernel

shell

subnet mask

39

Refer to the exhibit. Assume that the exhibited output is from a host that is connected to a Linksys integrated router. What is the first thing that should be checked while using a bottom-up troubleshooting approach?

the default gateway on the host

the IP address on the host

the IP address on the router

the link status LED on the front of the router

the subnet mask on the host

40

For devices that do not autosense, which connection requires a crossover cable?

hub port to router port

PC to hub port

PC to switch port

PC port to PC port

41

Which Windows command is used to display the configured IP address, subnet mask, and default gateway?

ipconfig

netstat

nslookup

tracert

42

What must be identical on all devices in a WLAN for successful wireless communication between the devices?

SSID

antenna type

network mode

wireless NIC driver

43

What is the purpose of the ipconfig /release command?

It forces a client to give up its current IP address.

It forces a client to give up its current MAC address.

It forces the client to clear all the MAC address to IP address associations it has learned.

It shows the current IP configuration on the client.

44

What is the common DHCP role of the ISR router in home and small office networks?

The ISR router acts only as a DHCP client.

The ISR router acts only as a DHCP server.

The ISR router acts as both a DHCP client and server.

The ISR router forwards all DHCP traffic and acts as neither a client nor a server.

45

A company has a web server that must be accessible to both external and internal clients. Which security policy best practice should be followed to maximize security of the server?

Place the web server in a DMZ.

Keep the web server on the external network.

Configure a firewall device to serve as the web server.

Locate the web server in the server farm of the internal network.

46

For the second time in a week, workstations on a LAN are not able to log into the server. The technician fixed the problem the first time, but cannot remember the steps taken to solve it. What aspect of the troubleshooting process has the technician neglected?

identifying the problem

asking end-users questions

documenting the troubleshooting process

using structured techniques to solve a problem

47

A network technician suspects that malware on a user PC is opening multiple TCP connections to a specific foreign host address. Which Windows command line utility can be used to confirm the multiple TCP connections?

ping

netstat

tracert

ipconfig

nslookup

48

Which two causes of networking problems are related to the physical layer? (Choose two.)

damaged cables and connectors

incorrect addressing

incorrect subnet mask

overheated components

incorrect default gateway

49

Refer to the exhibit. A Linksys integrated services router is being used by wireless clients to access a server which is directly connected to an Ethernet port on the router. The server and the clients are using DHCP for IP addressing from the Linksys device and are on the same subnet. The server and the wireless clients are obtaining the correct IP configuration and can ping the Linksys device, but are unable to ping each other. What could be causing this issue?

The ping failures indicate a routing problem on the Linksys device. Check for proper routes.

The symptoms indicate a physical connection problem on the server. Check for the proper cable type and the physical connection.

The problem is most likely occurring on the Linksys device. Check all configurations on the Linksys device to ensure no security restrictions could be causing the issue.

Radio frequency problems are the likely problem if the clients cannot connect to the server on the same subnet. Begin by checking the signal strength at the wireless clients.

50

What two pieces of information should a help desk technician document while troubleshooting connectivity issues with an end user? (Choose two.)